Hzak

Hzak was a Kipchak chief and the leader of the Cumans on the Don River of southern Russia. In 1186, Hzak was defeated in battle by the Russians, leading to Hzak becoming an enemy of the Christians. In 1185, Hzak and Konchak defeated the Kievan Rus prince Igor Svyatoslavich and captured his brother Vsevolod I Svyatoslavich, and he raided Posemye and Putyvl.